Dogcows Code - chaz/openbox/blob - openbox/openbox.c

   1 #include "openbox.h"
   2 #include "dock.h"
   3 #include "event.h"
   4 #include "menu.h"
   5 #include "client.h"
   6 #include "dispatch.h"
   7 #include "xerror.h"
   8 #include "prop.h"
   9 #include "startup.h"
  10 #include "screen.h"
  11 #include "focus.h"
  12 #include "moveresize.h"
  13 #include "frame.h"
  14 #include "extensions.h"
  15 #include "grab.h"
  16 #include "plugin.h"
  17 #include "timer.h"
  18 #include "group.h"
  19 #include "config.h"
  20 #include "gettext.h"
  21 #include "parser/parse.h"
  22 #include "render/render.h"
  23 #include "render/theme.h"
  24
  25 #ifdef HAVE_FCNTL_H
  26 #  include <fcntl.h>
  27 #endif
  28 #ifdef HAVE_SIGNAL_H
  29 #  include <signal.h>
  30 #endif
  31 #ifdef HAVE_STDLIB_H
  32 #  include <stdlib.h>
  33 #endif
  34 #ifdef HAVE_LOCALE_H
  35 #  include <locale.h>
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #  include <unistd.h>
  39 #endif
  40 #ifdef HAVE_SYS_STAT_H
  41 #  include <sys/stat.h>
  42 #  include <sys/types.h>
  43 #endif
  44
  45 #ifdef USE_SM
  46 #include <X11/SM/SMlib.h>
  47 #endif
  48
  49 #include <X11/cursorfont.h>
  50
  51 #ifdef USE_SM
  52 gboolean    ob_sm_use = TRUE;
  53 SmcConn     ob_sm_conn;
  54 gchar      *ob_sm_id = NULL;
  55 #endif
  56
  57 RrInstance *ob_rr_inst = NULL;
  58 RrTheme    *ob_rr_theme = NULL;
  59 Display    *ob_display = NULL;
  60 int         ob_screen;
  61 Window      ob_root;
  62 State       ob_state;
  63 gboolean    ob_shutdown = FALSE;
  64 gboolean    ob_restart  = FALSE;
  65 char       *ob_restart_path = NULL;
  66 gboolean    ob_remote   = TRUE;
  67 gboolean    ob_sync     = FALSE;
  68 Cursors     ob_cursors;
  69 char       *ob_rc_path  = NULL;
  70
  71 static void signal_handler(const ObEvent *e, void *data);
  72 static void parse_args(int argc, char **argv);
  73
  74 static void sm_startup(int argc, char **argv);
  75 static void sm_shutdown();
  76
  77 #ifdef USE_SM
  78 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  79                              Bool shutdown, int interact_style, Bool fast);
  80 static void sm_die(SmcConn conn, SmPointer data);
  81 static void sm_save_complete(SmcConn conn, SmPointer data);
  82 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  83 #endif
  84 static void exit_with_error(gchar *msg);
  85
  86 int main(int argc, char **argv)
  87 {
  88     struct sigaction action;
  89     sigset_t sigset;
  90     char *path;
  91     xmlDocPtr doc;
  92     xmlNodePtr node;
  93
  94     ob_state = State_Starting;
  95
  96     /* initialize the locale */
  97     if (!setlocale(LC_ALL, ""))
  98         g_warning("Couldn't set locale from environment.\n");
  99     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
 100     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
 101     textdomain(PACKAGE_NAME);
 102
 103     /* start our event dispatcher and register for signals */
 104     dispatch_startup();
 105     dispatch_register(Event_Signal, signal_handler, NULL);
 106
 107     /* set up signal handler */
 108     sigemptyset(&sigset);
 109     action.sa_handler = dispatch_signal;
 110     action.sa_mask = sigset;
 111     action.sa_flags = SA_NOCLDSTOP;
 112     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 113     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 114     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
 115     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 116     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 117     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 118     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 119
 120     /* create the ~/.openbox dir */
 121     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 122     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 123                  S_IROTH | S_IWOTH | S_IXOTH));
 124     g_free(path);
 125     /* create the ~/.openbox/themes dir */
 126     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 127     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 128                  S_IROTH | S_IWOTH | S_IXOTH));
 129     g_free(path);
 130
 131     g_set_prgname(argv[0]);
 132
 133     /* parse out command line args */
 134     parse_args(argc, argv);
 135
 136     ob_display = XOpenDisplay(NULL);
 137     if (ob_display == NULL)
 138         exit_with_error("Failed to open the display.");
 139     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 140         exit_with_error("Failed to set display as close-on-exec.");
 141
 142     sm_startup(argc, argv);
 143
 144 #ifdef USE_LIBSN
 145     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 146 #endif
 147
 148     ob_screen = DefaultScreen(ob_display);
 149     ob_root = RootWindow(ob_display, ob_screen);
 150
 151     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 152     if (ob_rr_inst == NULL)
 153         exit_with_error("Failed to initialize the render library.");
 154
 155     /* XXX fork self onto other screens */
 156
 157     XSynchronize(ob_display, ob_sync);
 158
 159     /* check for locale support */
 160     if (!XSupportsLocale())
 161         g_warning("X server does not support locale.");
 162     if (!XSetLocaleModifiers(""))
 163         g_warning("Cannot set locale modifiers for the X server.");
 164
 165     /* set our error handler */
 166     XSetErrorHandler(xerror_handler);
 167
 168     /* set the DISPLAY environment variable for any lauched children, to the
 169        display we're using, so they open in the right place. */
 170     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 171
 172     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 173     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 174     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 175     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 176     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 177     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 178     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 179     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 180     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 181     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 182     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 183
 184     prop_startup(); /* get atoms values for the display */
 185     extensions_query_all(); /* find which extensions are present */
 186
 187     /* save stuff that we can use to restore state */
 188     startup_save();
 189
 190     if (screen_annex()) { /* it will be ours! */
 191         /* startup the parsing so everything can register sections of the rc */
 192         parse_startup();
 193
 194         /* anything that is going to read data from the rc file needs to be
 195            in this group */
 196         timer_startup();
 197         event_startup();
 198         grab_startup();
 199         window_startup();
 200         plugin_startup();
 201         /* load the plugins specified in the pluginrc */
 202         plugin_loadall();
 203
 204         /* set up the kernel config shit */
 205         config_startup();
 206         menu_startup();
 207         /* parse/load user options */
 208         if (parse_load_rc(&doc, &node))
 209             parse_tree(doc, node->xmlChildrenNode, NULL);
 210         /* we're done with parsing now, kill it */
 211         parse_shutdown();
 212
 213         /* load the theme specified in the rc file */
 214         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 215         if (ob_rr_theme == NULL)
 216             exit_with_error("Unable to load a theme.");
 217
 218         frame_startup();
 219         moveresize_startup();
 220         focus_startup();
 221         screen_startup();
 222         group_startup();
 223         client_startup();
 224         dock_startup();
 225
 226         /* call startup for all the plugins */
 227         plugin_startall();
 228
 229         /* get all the existing windows */
 230         client_manage_all();
 231
 232         ob_state = State_Running;
 233         while (!ob_shutdown)
 234             event_loop();
 235         ob_state = State_Exiting;
 236
 237         dock_remove_all();
 238         client_unmanage_all();
 239
 240         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 241         dock_shutdown();
 242         client_shutdown();
 243         group_shutdown();
 244         screen_shutdown();
 245         focus_shutdown();
 246         moveresize_shutdown();
 247         frame_shutdown();
 248         menu_shutdown();
 249         window_shutdown();
 250         grab_shutdown();
 251         event_shutdown();
 252         timer_shutdown();
 253         config_shutdown();
 254     }
 255
 256     dispatch_shutdown();
 257
 258     RrThemeFree(ob_rr_theme);
 259     RrInstanceFree(ob_rr_inst);
 260
 261     sm_shutdown();
 262
 263     XCloseDisplay(ob_display);
 264
 265     if (ob_restart) {
 266         if (ob_restart_path != NULL) {
 267             int argcp;
 268             char **argvp;
 269             GError *err = NULL;
 270
 271             /* run other shit */
 272             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 273                 execvp(argvp[0], argvp);
 274                 g_strfreev(argvp);
 275             } else {
 276                 g_warning("failed to execute '%s': %s", ob_restart_path,
 277                           err->message);
 278             }
 279         }
 280
 281         /* re-run me */
 282         execvp(argv[0], argv); /* try how we were run */
 283         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 284     }
 285
 286     return 0;
 287 }
 288
 289 static void sm_startup(int argc, char **argv)
 290 {
 291 #ifdef USE_SM
 292
 293 #define SM_ERR_LEN 1024
 294
 295     SmcCallbacks cb;
 296     char sm_err[SM_ERR_LEN];
 297
 298     cb.save_yourself.callback = sm_save_yourself;
 299     cb.save_yourself.client_data = NULL;
 300
 301     cb.die.callback = sm_die;
 302     cb.die.client_data = NULL;
 303
 304     cb.save_complete.callback = sm_save_complete;
 305     cb.save_complete.client_data = NULL;
 306
 307     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 308     cb.shutdown_cancelled.client_data = NULL;
 309
 310     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 311                                    SmcSaveYourselfProcMask |
 312                                    SmcDieProcMask |
 313                                    SmcSaveCompleteProcMask |
 314                                    SmcShutdownCancelledProcMask,
 315                                    &cb, ob_sm_id, &ob_sm_id,
 316                                    SM_ERR_LEN, sm_err);
 317     if (ob_sm_conn == NULL)
 318         g_warning("Failed to connect to session manager: %s", sm_err);
 319     else {
 320         SmPropValue val_prog;
 321         SmPropValue val_uid;
 322         SmPropValue val_hint;
 323         SmPropValue val_pri;
 324         SmPropValue val_pid;
 325         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 326         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 327         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 328         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 329         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 330         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 331         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 332         SmProp *props[7];
 333         gulong hint, pri;
 334         gchar pid[32];
 335         gint i, j;
 336         gboolean has_id;
 337
 338         for (i = 1; i < argc - 1; ++i)
 339             if (strcmp(argv[i], "-sm-client-id") == 0)
 340                 break;
 341         has_id = (i < argc - 1);
 342
 343         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 344         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 345         for (i = 0, j = 0; i < argc; ++i, ++j) {
 346             if (strcmp (argv[i], "-sm-client-id") == 0) {
 347                 ++i, --j; /* skip the next as well, keep j where it is */
 348             } else {
 349                 prop_cmd.vals[j].value = argv[i];
 350                 prop_cmd.vals[j].length = strlen(argv[i]);
 351             }
 352         }
 353
 354         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 355         prop_res.num_vals = (has_id ? argc : argc+2);
 356         for (i = 0, j = 0; i < argc; ++i, ++j) {
 357             if (strcmp (argv[i], "-sm-client-id") == 0) {
 358                 ++i, --j; /* skip the next as well, keep j where it is */
 359             } else {
 360                 prop_res.vals[j].value = argv[i];
 361                 prop_res.vals[j].length = strlen(argv[i]);
 362             }
 363         }
 364         prop_res.vals[j].value = "-sm-client-id";
 365         prop_res.vals[j++].length = strlen("-sm-client-id");
 366         prop_res.vals[j].value = ob_sm_id;
 367         prop_res.vals[j++].length = strlen(ob_sm_id);
 368
 369         val_prog.value = argv[0];
 370         val_prog.length = strlen(argv[0]);
 371
 372         val_uid.value = g_get_user_name();
 373         val_uid.length = strlen(val_uid.value);
 374
 375         hint = SmRestartImmediately;
 376         val_hint.value = &hint;
 377         val_hint.length = 1;
 378
 379         sprintf(pid, "%ld", (long)getpid());
 380         val_pid.value = pid;
 381         val_pid.length = strlen(pid);
 382
 383         /* priority with gnome-session-manager, low to run before other apps */
 384         pri = 20;
 385         val_pri.value = &pri;
 386         val_pri.length = 1;
 387
 388         prop_prog.vals = &val_prog;
 389         prop_uid.vals = &val_uid;
 390         prop_hint.vals = &val_hint;
 391         prop_pid.vals = &val_pid;
 392         prop_pri.vals = &val_pri;
 393
 394         props[0] = &prop_prog;
 395         props[1] = &prop_cmd;
 396         props[2] = &prop_res;
 397         props[3] = &prop_uid;
 398         props[4] = &prop_hint;
 399         props[5] = &prop_pid;
 400         props[6] = &prop_pri;
 401
 402         SmcSetProperties(ob_sm_conn, 7, props);
 403
 404         g_free(prop_cmd.vals);
 405         g_free(prop_res.vals);
 406
 407         g_message("Connected to session manager with id %s", ob_sm_id);
 408     }
 409     g_free (ob_sm_id);
 410 #endif
 411 }
 412
 413 static void sm_shutdown()
 414 {
 415 #ifdef USE_SM
 416     if (ob_sm_conn) {
 417         SmPropValue val_hint;
 418         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 419         SmProp *props[1];
 420         gulong hint;
 421
 422         /* when we exit, we want to reset this to a more friendly state */
 423         hint = SmRestartIfRunning;
 424         val_hint.value = &hint;
 425         val_hint.length = 1;
 426
 427         prop_hint.vals = &val_hint;
 428
 429         props[0] = &prop_hint;
 430
 431         SmcSetProperties(ob_sm_conn, 1, props);
 432
 433         SmcCloseConnection(ob_sm_conn, 0, NULL);
 434     }
 435 #endif
 436 }
 437
 438 static void signal_handler(const ObEvent *e, void *data)
 439 {
 440     int s;
 441
 442     s = e->data.s.signal;
 443     switch (s) {
 444     case SIGUSR1:
 445         g_message("Caught SIGUSR1 signal. Restarting.");
 446         ob_shutdown = ob_restart = TRUE;
 447         break;
 448
 449     case SIGHUP:
 450     case SIGINT:
 451     case SIGTERM:
 452     case SIGPIPE:
 453         g_message("Caught signal %d. Exiting.", s);
 454         ob_shutdown = TRUE;
 455         break;
 456
 457     case SIGFPE:
 458     case SIGSEGV:
 459         g_message("Caught signal %d. Aborting and dumping core.", s);
 460         abort();
 461     }
 462 }
 463
 464 static void print_version()
 465 {
 466     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 467     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 468     g_print("This is free software, and you are welcome to redistribute it\n");
 469     g_print("under certain conditions. See the file COPYING for details.\n\n");
 470 }
 471
 472 static void print_help()
 473 {
 474     print_version();
 475     g_print("Syntax: %s [options]\n\n", BINARY);
 476     g_print("Options:\n\n");
 477     g_print("  -rc PATH          Specify the path to the rc file to use\n");
 478 #ifdef USE_SM
 479     g_print("  -sm-client-id ID  Specify session management ID\n");
 480     g_print("  -sm-disable       Disable connection to session manager\n");
 481 #endif
 482     g_print("  -help             Display this help and exit\n");
 483     g_print("  -version          Display the version and exit\n");
 484     g_print("  -sync             Run in synchronous mode (this is slow and\n"
 485             "                    meant for debugging X routines)\n");
 486     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 487 }
 488
 489 static void parse_args(int argc, char **argv)
 490 {
 491     int i;
 492
 493     for (i = 1; i < argc; ++i) {
 494         if (!strcmp(argv[i], "-version")) {
 495             print_version();
 496             exit(0);
 497         } else if (!strcmp(argv[i], "-help")) {
 498             print_help();
 499             exit(0);
 500         } else if (!strcmp(argv[i], "-sync")) {
 501             ob_sync = TRUE;
 502         } else if (!strcmp(argv[i], "-rc")) {
 503             if (i == argc - 1) /* no args left */
 504                 g_printerr(_("-rc requires an argument\n"));
 505             else
 506                 ob_rc_path = argv[++i];
 507 #ifdef USE_SM
 508         } else if (!strcmp(argv[i], "-sm-client-id")) {
 509             if (i == argc - 1) /* no args left */
 510                 g_printerr(_("-sm-client-id requires an argument\n"));
 511             else
 512                 ob_sm_id = argv[++i];
 513         } else if (!strcmp(argv[i], "-sm-disable")) {
 514             ob_sm_use = FALSE;
 515 #endif
 516         } else {
 517             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 518             print_help();
 519             exit(1);
 520         }
 521     }
 522 }
 523
 524 gboolean ob_pointer_pos(int *x, int *y)
 525 {
 526     Window w;
 527     int i;
 528     guint u;
 529
 530     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 531 }
 532
 533 #ifdef USE_SM
 534 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 535                              Bool shutdown, int interact_style, Bool fast)
 536 {
 537     g_message("got SAVE YOURSELF from session manager");
 538     SmcSaveYourselfDone(conn, TRUE);
 539 }
 540
 541 static void sm_die(SmcConn conn, SmPointer data)
 542 {
 543     ob_shutdown = TRUE;
 544     g_message("got DIE from session manager");
 545 }
 546
 547 static void sm_save_complete(SmcConn conn, SmPointer data)
 548 {
 549     g_message("got SAVE COMPLETE from session manager");
 550 }
 551
 552 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 553 {
 554     g_message("got SHUTDOWN CANCELLED from session manager");
 555 }
 556 #endif
 557
 558 static void exit_with_error(gchar *msg)
 559 {
 560     g_critical(msg);
 561     sm_shutdown();
 562     exit(EXIT_FAILURE);
 563 }